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Key features and helpful tips for windows, doors and skylights

Choose ENERGY STAR® to save you money!

Choosing energy efficient models for your windows, doors and skylights can help reduce energy use in your home.

Key features to look for when choosing energy efficient windows, doors and skylights

Special coatings: (known as low emissivity coatings, or “low-e glass”) and insulated frames and sashes mean your window will be more comfortable to sit beside and there will be reduced condensation on the glass.

Triple glazing: Available for better exterior noise reduction and even more energy savings.

Window gas fills: Special inert gases between the glass panes rather than just air for better insulation.

Helpful tips

Hire a professional to install your windows, doors or skylights – trained installers ensure your windows, doors or skylights will perform their best.

On the eastern and northern sides of your house, install windows with higher insulation values to reduce heat loss.

Educate yourself about factors affecting energy efficiency, including radiation, conduction, convection and air leakage.

What’s in a label?

Energy Star label

The windows, doors and skylights label in Canada has the following components:

  • The ENERGY STAR® symbol means the model is highly energy efficient.
  • Certified energy performance values as verified by a certification body.


All ENERGY STAR certified products are tested to meet strict efficiency specifications and are certified by an independent third party. They perform the same as or better than standard products without compromising performance in any way.

Find out more about windows, doors and skylights

The ENERGY STAR name and symbol are trademarks registered in Canada by the United States Environmental Protection Agency and are administered and promoted by Natural Resources Canada.

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